Refer to the Table

question 173

Essay

Refer to the table. In most temperate regions of the oceans, there is a spring bloom of phytoplankton.Although the red tide blooms are harmful, phytoplankton blooms can also be beneficial for marine communities.In fact, many species of marine life depend on these blooms for their survival.The dates of spring phytoplankton blooms near the coast of Nova Scotia, Canada, were determined by examining remote satellite images.The table shows these dates as deviations from the mean date of the spring bloom in this region; it also gives the survival index for larval haddock (an important commercial fish) for the year after each bloom.The survival index is the ratio of the mass of juvenile fish to the mass of mature fish; higher values indicate better survival of larval fish.
Plot the survival index of larval haddock against the deviation in the date of the spring phytoplankton bloom.Calculate a correlation coefficient for their relationship (see Appendix B in the textbook).

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Definitions:

Majority

More than half of a group or quantity, often used to describe the greater part or number in a community or collection of items.

Disaffirm

To reject, refuse to accept, or declare a contract void, often used in the context of minors’ capacity to enter into contracts.

Necessary

Essential or required for a particular purpose, without which the objective cannot be achieved.

Ratification

The action of signing or giving formal consent to a treaty, contract, or agreement, making it officially valid.